Hālāwai hoʻopaʻa haʻawina ma ka mea wehe metala kaumaha

I kēia lā, ua hoʻonohonoho mākou i kahi hālāwai aʻo huahana. ʻO kēia haʻawina no ka huahana o kā mākou hui i kapa ʻia ʻoLuna Wehe Metala Kaumaha.He aha nā ʻano mea kupanaha o kēia huahana?

Cleanwat cHe mea hopu metala kaumaha ʻaʻohe ʻawahia a he mea aloha i ke kaiapuni ʻo W-15. Hiki i kēia kemika ke hana i kahi hui paʻa me ka hapa nui o nā iona metala monovalent a me divalent i loko o ka wai ʻōpala, e like me: Fe2+, Ni2+, Pb2+, Cu2+, Ag+, Zn2+, Cd2+, Hg2+, Ti+ a me Cr3+, a laila hiki i ke kumu o ka wehe ʻana i ka ikehu kaumaha mai ka wai. Ma hope o ka mālama ʻana, ʻaʻole hiki ke hoʻoheheʻe ʻia ka ua e ka ua, ʻaʻohe pilikia haumia lua.

Wehe i ka metala kaumaha mai ka wai ʻōpala e like me: ka wai hoʻoheheʻe desulfurization mai ka hale hana mana lanahu (kaʻina hana desulfurization pulu) ka wai hoʻoheheʻe mai ka hale hana papa kaapuni paʻi (keleawe i hoʻopili ʻia), Electroplatinghale hana (Zinc), holoi kiʻi, hale hana Petrochemical, hale hana hana kaʻa a pēlā aku.

He palekana kiʻekiʻe, ʻaʻohe mea ʻawahia, ʻaʻohe ʻala ʻino, ʻaʻohe mea ʻawahia i hana ʻia ma hope o ka mālama ʻana. Hiki ke hoʻohana ʻia i ka laulā pH ākea, hiki ke hoʻohana ʻia i loko o ka wai hoʻoneoneo waikawa a alkaline paha. Ke noho pū nā ion metala, hiki ke wehe ʻia i ka manawa like. Ke noho nā ion metala kaumaha ma ke ʻano o ka paʻakai paʻakikī (EDTA, tetramine etc) ʻaʻole hiki ke wehe loa ʻia e ke ʻano hydroxide precipitate, hiki i kēia huahana ke wehe pū. Ke waiho ʻia ka metala kaumaha, ʻaʻole ia e ālai maʻalahi ʻia e nā paʻakai i noho pū ʻia i loko o ka wai hoʻoneoneo. Hoʻokaʻawale maʻalahi ʻia ka wai paʻa-wai. Paʻa nā waihoʻoluʻu metala kaumaha, ʻoiai ma 200-250 ℃ a i ʻole ka waikawa dilute. ʻO ka hope loa, he ʻano hana maʻalahi kona, maʻalahi ka hoʻohemo ʻana i ka sludge.

ʻO ka mea wehe metala kaumaha, ka hoʻopau ʻana i nā metala kaumaha, Me ke kūlana kiʻekiʻe, ke kumukūʻai kūpono, ka lawe ʻana i ka manawa kūpono a me nā lawelawe i hana ʻia a maʻamau e kōkua i nā mea kūʻai aku e hoʻokō pono i kā lākou mau pahuhopu, ua loaʻa i kā mākou hui ka mahalo ma nā mākeke kūloko a me nā ʻāina ʻē. Ke kakali nei mākou i ka loaʻa ʻana o kāu mau nīnau i ka wā koke a ke manaʻolana nei e loaʻa ka manawa kūpono e hana pū me ʻoe i ka wā e hiki mai ana. Welina mai e ʻike i kā mākou hui.